Mario Chalmers scored a season-high 20 for the Heat, who matched the franchise's best 25-game start at 19-6. Chris Bosh added 16 for Miami, which has beaten the Thunder five straight times going back to last June's title series.

Kevin Durant scored 33 points and Russell Westbrook added 21 for Oklahoma City, but both Thunder stars missed potentially game-tying 3-point attempts in the final seconds. Serge Ibaka and Kevin Martin each added 15 for the Thunder, who have dropped two straight for the first time this season.

The Heat went 19 for 19 from the foul line, the second-best effort in franchise history.

Bryant scored 34 points in his NBA-record 15th Christmas Day game, and Metta World Peace added 20 points and seven rebounds while defending Carmelo Anthony, whose 34 points led the Knicks. Bryant, the league's leading scorer, has topped 30 in nine straight games.

The Lakers improved to 14-14 – 9-9 under new coach Mike D'Antoni – and upped their holiday record to 21-18, including 13-9 at home.

Celtics 93, Nets 76: At New York, Rajon Rondo scored 19 points in his first full game against Brooklyn this season, and Boston beat the Nets in another game with heated moments between the division rivals.

Rondo, sidelined in the first meeting and thrown out of the second after shoving Nets forward Kris Humphries into the courtside seats, outplayed counterpart Deron Williams and helped the Celtics take control early.

Rookie Jared Sullinger tied a career high with 16 points, and Jeff Green had 15 for the Celtics (14-13), who avoided falling under .500 with their second victory in six games.

Gerald Wallace and Brook Lopez each scored 15 for the Nets, who have lost four of five.

The Celtics took control with a 23-5 run in the second quarter. They had 11 assists on 13 baskets and outscored the Nets 34-18 in the period.

A month after the teams scuffled in Boston, there was another skirmish in the fourth quarter that resulted in four technical fouls.

Williams had only 10 points on 3-of-7 shooting, and Joe Johnson, his partner in a high-priced backcourt, shot 4 of 14 for his 12 points.

Boston's Kevin Garnett had eight points and 10 rebounds on the day he tied Charles Oakley for 15th place on the NBA's career list with his 1,282nd game.